I think the privacy that many perceive they are afforded today is just that, a perception and that perception is quite contrary to reality. Its just not in-your-face in a way that makes it too obvious where people will reject it. It is somewhat subtle and nuanced. "We" are being read-in to this slowly, while on the backend most of the pieces are already together. Things like talking to someone about taking a vacation, then you start getting vacation email spam.
Talking about needing to start working out, and then start getting ads / recommendations from amazon about excersize equipment. And this is just the very thin surface of what is readily available behind the scenes today, right now.
One might argue that the examples I provided are "good" uses of such, as it brings you together with areas of interest. So if thats considered a good use, then whats a bad use? I am sure you can speculate. But that is still analogous to "whos finger is on the trigger".
These supercomputing centers do a lot of "good" from helping to model climate ( yes, I know lol) to nuclear research, astronomy and theoretical physics, etc. So again, the finger on the trigger. It really just comes down to that. I think Trump for one, is a globalist, but the difference is he wants the USA to lead not be lead. But thats just, like...my opinion. I also think he likely doesn't understand all the nuances and it doesn't make me any more confortable with Elon having his ear for such things...